城市主干道线控制优化与模拟研究

【作者】 高云峰；

【导师】 魏朗；

【作者基本信息】 长安大学 ， 车辆工程， 2002， 硕士

【摘要】 目前我国大多数城市交通拥塞问题突出，尤其是道路交叉口成为城市交通的瓶颈，车辆在主要交叉口上的平均延误太长，而实际的事实之一是这些交叉口的交通控制方式大都属于单点控制。论文以西安市区内从解放路五路口到雁塔路立交桥之间的主干道为依托对象，在对这段主干道上的各个交叉口进行详实交通调查和交通分析的基础上，认真研究了城市主干道线控制的参数优化模型。 从改进城市交通控制方式的角度出发，本研究力图通过线控制的方式降低车辆在主干道上的总行程延误。论文推导了交叉口当量交通量的计算公式，提出并推导了交叉口饱和交通流率基本值；明确给出了计算车辆在交叉口上的延误所需的各个参数的范围；考虑了各个交叉口转弯车辆的影响和主干道上不同路段的重要性差异，建立了主干道交通量的计算公式。为了使主干道线控制优化结果可视化，本研究在Windows NT 4.0 Server平台上利用Microsoft Visual C++ 6.0编程语言开发了城市主干道线控制优化软件。软件对交叉口延误模型进行了模拟，同时建立起简单的城市主干道线控制优化模拟系统。本研究利用城市主干道线控制优化软件对主干道进行了优化。更多还原

【Abstract】 Now in most cities in China, traffic jam is an outstanding problem. Intersections have been the bottlenecks of the urban traffic. The average stop delay of vehicle at the main intersections is too long, while it’s one of the actual facts that the traffic control mode at these intersections is classified as spot control. The thesis took the arterial street, in Xi’an city, between WuLuKou in JieFang street and the grade separation in YanTa street as its investigation object. Based on an elaborate traffic survey and a meticulous traffic analysis of all the intersections in the arterial street, the author researched the parameter-optimized model of line control.On the point of view of improving the urban traffic control mode, the research managed to decrease the travel delay of vehicle by line control. To work the line control parameters out, the thesis deduced the formula calculating the equivalent traffic volume of intersection, put forward and deduced the elementary saturated traffic volume of intersection, gave the bounds of all the parameters needed for the stop delay of vehicle at the intersection. Taking the influence of turning vehicles and the difference of the importance between two different adjoined segments of the arterial street into account, the thesis established the formula calculating the traffic volume of the arterial street when the offsets of all the intersections are optimized. To visualize the result of the optimized line control of the arterial street, the author of the thesis independently developed the software named Optimization of Line Control of Arterial Streets on the platform of Windows NT Server 4.0 utilizing Visual C++ 6.0 programing language. The software can simulate the vehicle stop delay model, establish the simulating system of the optimization of the line control of arterial streets. The research Optimized the parameters of line control of the arterial street by the software.更多还原